Fluid handling system and method

The fluid handling system of any one of the preceding claims, wherein the fluid handling system is configured such that the first fluid substance and the second fluid substance can be moved into the mixing region simultaneously.

The fluid handling system of any one of the preceding claims, wherein the fluid path system comprises a directing region arranged between the mixing region and the unguided flow region as seen along the flow direction of the fluid substance mixture, wherein the directing region is configured to determine an entry flow direction of the fluid substance mixture with which the fluid substance mixture enters the unguided flow region.

The fluid handling system of any one of the preceding claims, wherein, for the predetermined distance, the fluid handling system, e.g. due to an interruption of the fluid path system in the unguided flow region and/or due to a mixture fluid path of the fluid path system being configured with an appropriate width in the unguided flow region, has a free fall region or free flow region which allows the fluid substance mixture to travel within the fluid handling system without contacting the inner wall of the fluid handling system, e.g. the inner wall which is closest to the fluid substance mixture.

The fluid handling system of any one of the preceding claims, wherein the predetermined distance is chosen such that the fluid substance mixture can be or is prevented from contacting the inner wall for a predetermined period of time, e.g. during operation of the fluid handling system.

The fluid handling system of any one of the preceding claims, wherein the first fluid substance and the second fluid substance are chosen such that the fluid substance mixture resulting from mixing the first fluid substance and the second fluid substance has an intermediate state, e.g. during and/or directly after mixing of the first fluid substance and the second fluid substance.

The fluid handling system of any one of the preceding claims, wherein the first fluid substance and the second fluid substance are chosen so as to establish a fluid substance mixture comprising colloids, e.g. with an average particle size of the colloids of greater than or equal to 10 nm and/or less than or equal to 1000 nm.

The fluid handling system of any one of the preceding claims, wherein the first fluid substance comprises a nucleic acid, a peptide or a protein.

The fluid handling system of any one of the preceding claims, wherein the second fluid substance is a colloidal suspension, e.g. an ionic colloidal suspension, such as a cationic colloidal suspension.

The fluid handling system of any one of the preceding claims, wherein the fluid handling system is configured such that the fluid substance mixture, downstream of the unguided flow region, is guided away from the unguided flow region towards an exit of the fluid handling system or fluid path system e.g. to enable a continuous withdrawal of fluid substance mixture from the fluid handling system via the exit.

The fluid handling system of any one of the preceding claims, wherein the fluid path system, in the unguided flow region, comprises an increased diameter of a mixture fluid path of the fluid path system such that an unguided flow of the fluid substance mixture is possible in the unguided flow region.

The fluid handling system of any one of the preceding claims, wherein the mixing region is formed by a mixing component, which is connected to a first tubing defining the first fluid path and/or a second tubing defining the second fluid path.

The fluid handling system of any one of the preceding claims wherein the fluid handling system is configured so as to provide a turbulent mixing of the first fluid substance and the second fluid substance in the mixing region.

A method for processing fluids, comprising:

• guiding a first fluid substance and a second fluid substance within a fluid path system to a mixing region to form a fluid substance mixture, and
• preventing contact between the fluid substance mixture and a wall of the fluid path system for a predetermined period of time, in an unguided flow region along the flow direction of the fluid substance mixture downstream of the mixing region.